====== Tumor capsule ======

[[Meningioma]]s, [[schwannoma]]s, and [[pituitary neuroendocrine tumor]]s are typically [[benign tumor]]s of [[intracranial]] origin, but all of these [[tumor]]s have a border with the surrounding [[tissue]]. The basic structure is a clear "boundary" between the [[tumor]] and its surroundings, with a thin membrane layer to create that separation. This layer of membrane is the boundary between the [[tumor]] and its surroundings and provides a space for the tumor to grow its cells, and can be viewed as the so-called "[[tumor]] [[capsule]]". Based on the relationship between the membrane structure of the tumor capsule and the surrounding normal tissues, Watanabe and Murayama performed surgery to reduce surgical [[complication]]s. They histologically evaluated three types of tumor capsules (meningioma, schwannoma, and pituitary neuroendocrine tumor) and compared the membrane structure of each tumor with that seen in clinical surgery
((Watanabe K, Murayama Y. [Surgical [[Strategy]] of Benign [[Skull Base Tumor]]s Based on [[Membrane]] Structure]. No Shinkei Geka. 2022 May;50(3):681-694. Japanese. doi: 10.11477/mf.1436204604. PMID: 35670183.)).